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tan^(- 1)(3/2)-tan^(- 1)(1/5)=...

`tan^(- 1)(3/2)-tan^(- 1)(1/5)=`

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Prove: tan^(-1)(2/3)=1/2tan^(-1)(12/5)

Prove: tan^(-1)(2/3)=1/2tan^(-1)(12/5)

Prove that : tan^(-1)(1/2) + tan^(-1)(1/3) = tan^(-1)(3/5) + tan^(-1)(1/4) = pi/4

Prove that : tan^(-1)(1/2) + tan^(-1)(1/3) = tan^(-1)(3/5) + tan^(-1)(1/4) = pi/4

Prove that tan^(-1) (1/8) +tan^(-1) (1/5) =tan^(-1) (1/3)

tan ^(-1) (1/3)+tan ^(-1) (1/5)+tan ^(-1) (1/7)=tan ^(-1) x, then x=

tan(tan^(-1)((1)/(2))-tan^(-1)((1)/(3)))=

Prove that: tan^(-1)(1)/(7)+tan^(-1)(1)/(13)=tan^(-1)(2)/(9)tan^(-1)+tan^(-1)(1)/(5)+tan^(-1)(1)/(8)=(pi)/(4)tan^(-1)(3)/(4)+tan^(-1)(3)/(5)-tan^(-1)(8)/(19)=(pi)/(4)tan^(-1)(1)/(5)+tan^(-1)(1)/(7)+tan^(-1)(1)/(3)+tan^(-1)(1)/(8)=(pi)/(4)cot^(-1)7+cot^(-1)8+cot^(-1)18=cot^(-1)(1)/(13)

Prove that tan ^(-1)(1/5) + tan^(-1)(1/7) +tan^(-1)(1/3)+ tan ^(-1)(1/8) = pi/4

Prove that : tan^(-1)(1)/(5)+tan^(-1)(1)/(7)+tan^(-1)(1)/(3)+tan^(-1)(1)/(8)=(pi)/(4)